2026年同步练习册青岛出版社四年级数学下册青岛版五四制淄博专版第1页答案
1. 判断。(是方程的打“√”,不是的打“×”。)
$0.5x = 40$ (
) $4x + 8$ (
)
$76x - x < 99$ (
) $10 ÷ m = 2$ (
)
$20 - 4 = 16$ (
) $4x = 0$ (
)
$2x + 7 = x + 12$ (
) $23 + 6y = 540$ (
)

答案

$0.5x = 40$ (√)
$4x + 8$ (×)
$76x - x < 99$ (×)
$10 ÷ m = 2$ (√)
$20 - 4 = 16$ (×)
$4x = 0$ (√)
$2x + 7 = x + 12$ (√)
$23 + 6y = 540$ (√)
2. 看图列方程。

方程:


方程:


方程:


方程:


方程:


方程:

答案

$x + 20 = 60$
$4x = 100$
$3x + 15 = 60$
$2x + 10 = 65$
$25×2 + 2x = 150$
$x + 3.9 = 9.7$